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Infineon Technologies CY8C3445PVI-094T
- Part No.:
- CY8C3445PVI-094T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY8C3445PVI-094T.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,342
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Product details
Overview
CY8C3445PVI-094T from Infineon Technologies (formerly Cypress) is a programmable 8-bit PSoC® 3 system-on-chip integrating an 8051 CPU, 64 KB flash, 8 KB RAM, four 16-bit TCPWM blocks, full CAN 2.0b interface, USB 2.0 Full-Speed peripheral, and configurable analog peripherals including delta-sigma ADC, dual DACs, opamps, and comparators - used in embedded control systems requiring mixed-signal integration and field reconfigurability.
For engineers reviewing the CY8C3445PVI-094T datasheet, CY8C3445PVI-094T pinout, CY8C3445PVI-094T application, or CY8C3445PVI-094T equivalent, key selection criteria include its 50-MHz 8051 core, 1.71–5.5 V operating range, 24-channel DMA, CapSense® support for up to 62 sensors, and SSOP-48 package with 29 I/O pins including eight SIOs with 25 mA sink capability.
Technical Context
The CY8C3445PVI-094T implements a highly flexible mixed-signal architecture centered on a 50-MHz 8051 CPU with hardware-accelerated DMA and interrupt controller. Its digital subsystem uses 24 universal digital blocks (UDBs) to synthesize custom peripherals-including UART, SPI, LIN, CRC, PRS, and quadrature decoders-routed via digital system interconnect (DSI) to any GPIO.
Analog functionality is delivered through two programmable SC/CT blocks (supporting PGA, TIA, mixer, sample-and-hold), a configurable 8–12-bit delta-sigma ADC, two 8-bit DACs, four comparators, and two rail-to-rail opamps-all operating across six independent power domains with 1.024 V ±1% internal reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 8-bit 8051 running up to 50 MHz; enables deterministic real-time control with 32 interrupt inputs and hardware DMA offload. |
| Memory | 64 KB flash (with cache/security), 8 KB RAM, 2 KB EEPROM; supports secure firmware updates and data logging without external storage. |
| Digital Peripherals | Four 16-bit TCPWM blocks + 24 UDBs; allows concurrent generation of multiple PWM signals, timers, counters, and protocol engines (I2C, SPI, LIN) in one device. |
| Analog Peripherals | Configurable delta-sigma ADC (8–12 bit), dual 8-bit DACs, two opamps, four comparators, two SC/CT blocks; enables sensor signal conditioning, closed-loop analog control, and precision measurement. |
| Communication | Full CAN 2.0b (16 Rx/8 Tx buffers), USB 2.0 FS (12 Mbps), I2C (1 Mbps); supports automotive diagnostics, industrial connectivity, and human-interface device integration. |
| Power & Packaging | 1.71–5.5 V operation, 1 µA sleep / 200 nA hibernate modes, SSOP-48 package with 29 I/Os (8 SIOs); suitable for battery-powered and multi-rail embedded systems. |
Pinout & Package
CY8C3445PVI-094T is housed in a 48-pin Shrink Small Outline Package (SSOP) with 1.0 mm pitch, 15.4 mm × 7.6 mm body size, and exposed pad for thermal management. Pin assignments are validated per Cypress document 001-53304 Rev. AA, pages 6–10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | Primary 1.71–5.5 V input powering CPU, memory, and digital logic; supports up to six independent voltage domains. |
| VSS | Ground reference | Common return path for all analog/digital circuits; requires low-impedance PCB connection to minimize noise coupling. |
| P0[0]–P0[7] | General-purpose I/O | Eight GPIOs with CapSense®, analog routing, and digital peripheral assignment; configurable as SIO with 25 mA sink capability. |
| P1[0]–P1[7] | General-purpose I/O | Eight GPIOs supporting USBIO, LCD drive, and analog input; compatible with internal 32.768 kHz watch crystal oscillator. |
| XRES | External reset input | Active-low asynchronous reset pin; debounced internally and compatible with push-button or microcontroller-driven reset sequencing. |
| XTAL_IN / XTAL_OUT | Crystal oscillator interface | Supports 4–25 MHz external crystal; enables precise timing for USB, CAN, and RTC functions with <±20 ppm stability. |
Key Features
| Feature | Design Value |
|---|---|
| CapSense® capacitive sensing | Supports up to 62 self- or mutual-capacitance sensors directly on GPIOs; eliminates need for external touch controller ICs in HMI designs. |
| Programmable analog blocks | Two SC/CT blocks implement PGA, TIA, or mixer configurations without external components; reduces BOM count and board area in sensor front-ends. |
| Flexible clocking system | Internal IMO (3–62 MHz), PLL, ILO (1/33/100 kHz), and 32.768 kHz RTC oscillator; enables dynamic frequency scaling and ultra-low-power wake-up timing. |
| USB 2.0 Full-Speed peripheral | Integrated USB PHY and controller compliant with TID#40770053; supports HID, CDC, and MSC class devices without external transceiver or crystal. |
| Hot-swap I/O capability | Eight SIO pins tolerate overvoltage up to 5.5 V while powered down; enables safe insertion into live backplanes or hot-pluggable modules. |
Applications
| Industrial Motor Control | Medical Sensor Hub |
|---|---|
|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers and pump drives using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Central controller executing commutation logic, PWM generation, current sensing, and CAN-based command interface. Use Value: Integrated TCPWM blocks generate synchronized three-phase PWM with dead-time insertion; analog subsystem conditions current-sense amplifier outputs and filters encoder signals. |
Use Scenario: Multi-parameter physiological monitoring (ECG, temperature, SpO₂) in portable diagnostic devices. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing analog sensor outputs, performing baseline correction, and transmitting data via USB or CAN. Use Value: Delta-sigma ADC achieves >12-bit ENOB at 1 kSPS; programmable SC/CT blocks implement active filter stages and TIA for photodiode interfaces. |
| Automotive Body Control Module | Smart Home Touch Interface |
|
Use Scenario: Door module managing window lift, mirror adjustment, and interior lighting with LIN/CAN communication. IC Role / Device Role / Timing Role: Mixed-signal MCU handling analog switch detection, PWM dimming, LIN transceiver emulation, and CAN message routing. Use Value: Full CAN 2.0b with 16 Rx buffers handles multiplexed vehicle bus traffic; SIO pins interface directly with 12 V load switches and potentiometers. |
Use Scenario: Wall-mounted touch panel controlling lighting, climate, and security with gesture recognition and proximity wake-up. IC Role / Device Role / Timing Role: Capacitive touch processor with integrated LED/PWM drivers and ambient light sensing. Use Value: CapSense® supports 62-node projected capacitance matrix; dual DACs drive RGB LED backlight with smooth gamma-corrected dimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C3446LTI-094 | Same CY8C34 family, but in 68-pin QFN package with 48 GPIOs and enhanced analog routing; no USB PHY. | Lacks integrated USB 2.0 FS peripheral; better suited for high-channel-count analog acquisition without host connectivity. | Select when higher I/O count and analog flexibility outweigh need for native USB interface. |
| CY8C4245AXI-483 | PSoC 4 (ARM Cortex-M0+) with 256 KB flash, 32 KB RAM, and CapSense®; no CAN or USB FS; 48-pin QFN. | Higher performance CPU and memory, but lacks CAN 2.0b and full-speed USB; targets cost-sensitive IoT endpoints. | Select when ARM ecosystem compatibility and larger memory are prioritized over legacy automotive protocols. |
Compared with CY8C3446LTI-094 and CY8C4245AXI-483, CY8C3445PVI-094T uniquely combines CAN 2.0b, USB 2.0 FS, and CapSense® in a compact SSOP-48 package - making it optimal for space-constrained, protocol-diverse embedded nodes where field reconfigurability and analog integration are critical.
Availability
CY8C3445PVI-094T is available at Aetrix Electronics and suitable for industrial motor control, medical sensor hubs, automotive body electronics, and smart home touch interfaces requiring stable component supply and long-term lifecycle support.
Supply support for CY8C3445PVI-094T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies acquired Cypress Semiconductor in 2020 and now owns and supports the full PSoC® portfolio, delivering high-reliability semiconductor solutions for automotive, industrial, and IoT markets.
CY8C3445PVI-094T belongs to the PSoC® 3 family - designed specifically for ultra-low-power, field-programmable mixed-signal control in resource-constrained embedded systems where analog-digital co-design and rapid prototyping are essential.
FAQ
Does CY8C3445PVI-094T support USB device enumeration without an external crystal?
Yes. The device integrates an internal oscillator qualified for USB 2.0 Full-Speed operation (TID#40770053), enabling plug-and-play enumeration using only the internal 48-MHz IMO - no external crystal required for basic HID or CDC class devices.
What is the maximum number of CapSense® electrodes supported on this part?
CY8C3445PVI-094T supports up to 62 CapSense® sensors using self-capacitance or mutual-capacitance methods. All 29 GPIOs are CapSense®-capable, and routing flexibility allows simultaneous scanning of multiple electrodes via dedicated CSD block resources.
Can the delta-sigma ADC operate concurrently with the DACs and opamps?
Yes. The analog subsystem permits concurrent operation: the delta-sigma ADC can sample while both 8-bit DACs output independent waveforms, and the two opamps condition analog signals - all synchronized via shared clock dividers and controlled by the 8051 CPU or DMA.
Is there hardware support for CAN message filtering and acceptance masking?
Yes. The integrated CAN 2.0b controller includes 32 message objects with programmable ID masks and filters. Each of the 16 Rx buffers supports individual acceptance filtering, allowing selective reception of standard/extended frames based on identifier ranges or bit patterns.
CY8C3445PVI-094T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Series:
- PSOC™ 3 CY8C34xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- CapSense, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C3445PVI-094T FAQ
1.How can I place an order for CY8C3445PVI-094T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3445PVI-094T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C3445PVI-094T reliable?
The price and inventory of CY8C3445PVI-094T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3445PVI-094T is usually 5 days.
3.What payment methods are accepted for CY8C3445PVI-094T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3445PVI-094T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3445PVI-094T?
CY8C3445PVI-094T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3445PVI-094T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C3445PVI-094T?
For technical support, including CY8C3445PVI-094T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3445PVI-094T requirements.
6.How does Aetrix verify that CY8C3445PVI-094T is sourced from the original manufacturer or authorized distributors?
All CY8C3445PVI-094T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C3445PVI-094T meets industry standards.
7.What is the process for return or replacement of CY8C3445PVI-094T?
All CY8C3445PVI-094T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3445PVI-094T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C3445PVI-094T part is unused and in its original packaging.
Return procedure for CY8C3445PVI-094T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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